Removed duplicate definitions of TypeHelpers - causing classpath issues

typesystem/src/test/scala/org/apache/hadoop/metadata/json/TypesSerializationTest.scala

@@ -146,45 +146,3 @@ class TypesSerializationTest extends BaseTest with TypeHelpers {
     Assert.assertEquals(typesDef1, typesDef2)
   }
 }
-
-trait TypeHelpers {
-  def requiredAttr(name: String, dataType: IDataType[_]) =
-    new AttributeDefinition(name, dataType.getName, Multiplicity.REQUIRED, false, null)
-
-  def optionalAttr(name: String, dataTypeName: String) =
-    new AttributeDefinition(name, dataTypeName, Multiplicity.OPTIONAL, false, null)
-
-
-  def optionalAttr(name: String, dataType: IDataType[_]) =
-    new AttributeDefinition(name, dataType.getName, Multiplicity.OPTIONAL, false, null)
-
-  def structDef(name : String, attrs : AttributeDefinition*) = {
-    new StructTypeDefinition(name, attrs.toArray)
-  }
-
-  def defineTraits(ts: TypeSystem, tDefs: HierarchicalTypeDefinition[TraitType]*) = {
-    ts.defineTraitTypes(tDefs:_*)
-  }
-
-  def createTraitTypeDef(name: String, superTypes: Seq[String], attrDefs: AttributeDefinition*):
-  HierarchicalTypeDefinition[TraitType] = {
-    val sts = ImmutableList.copyOf(superTypes.toArray)
-    return new HierarchicalTypeDefinition[TraitType](classOf[TraitType], name,
-      sts, attrDefs.toArray)
-  }
-
-  def createClassTypeDef(name: String, superTypes: Seq[String], attrDefs: AttributeDefinition*):
-  HierarchicalTypeDefinition[ClassType] = {
-    val sts = ImmutableList.copyOf(superTypes.toArray)
-    return new HierarchicalTypeDefinition[ClassType](classOf[ClassType], name,
-      sts, attrDefs.toArray)
-  }
-
-  @throws(classOf[MetadataException])
-  def defineClassType(ts : TypeSystem, classDef: HierarchicalTypeDefinition[ClassType]): ClassType = {
-    ts.defineTypes(ImmutableList.of[StructTypeDefinition],
-      ImmutableList.of[HierarchicalTypeDefinition[TraitType]],
-      ImmutableList.of[HierarchicalTypeDefinition[ClassType]](classDef))
-    return ts.getDataType(classOf[ClassType], classDef.typeName)
-  }
-}